98995154857 has 2 divisors, whose sum is σ = 98995154858. Its totient is φ = 98995154856.

The previous prime is 98995154831. The next prime is 98995154861. The reversal of 98995154857 is 75845159989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74286773136 + 24708381721 = 272556^2 + 157189^2 .

It is an emirp because it is prime and its reverse (75845159989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98995154857 - 2¹⁹ = 98994630569 is a prime.

It is a super-2 number, since 2×98995154857² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98995154057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49497577428 + 49497577429.

It is an arithmetic number, because the mean of its divisors is an integer number (49497577429).

Almost surely, 2^98995154857 is an apocalyptic number.

It is an amenable number.

98995154857 is a deficient number, since it is larger than the sum of its proper divisors (1).

98995154857 is an equidigital number, since it uses as much as digits as its factorization.

98995154857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296000, while the sum is 70.

The spelling of 98995154857 in words is "ninety-eight billion, nine hundred ninety-five million, one hundred fifty-four thousand, eight hundred fifty-seven".